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Finding the Third Proportional to 28,512 and 69,093

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Solution

The third proportional to 28,512 and 69,093 is: 167,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512 : 69,093 = 69,093 : x
  2. Step 2: Convert to fraction form
    28,512/69,093 = 69,093/x
  3. Step 3: Cross multiply
    28,512x = 69,093 × 69,093
  4. Step 4: Simplify right side
    28,512x = 4,773,842,649
  5. Step 5: Solve for x
    x = 4,773,842,649/28,512
  6. Step 6: Final answer
    x = 167,432.75

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.